Requirement: You should use binary search in InsertItem( ), DeleteItem( ) and RetrieveItem( ).

In your main routine, the following tasks are required to complete:

Task 1: Create one instance of this class. You also need to read in data from one data file: float.txt, which contains the following numbers:
5.5
6.2
7.1
8.0
9.0
10.0
1.0
2.0
3.3
4.4

Data in float.txt contains floating numbers, which should be inserted into the object of SortedList. Note that you do not have any prior knowledge about data values in float.dat, but we assume that there are 10 elements in the data file.

Task 2: Use GetNextItem( ) to print out all the elements in the list in sorted sequence on computer screen.